Tennessee mammals

Eastern Red Bat in Tennessee

Lasiurus borealis

Native to Tennessee S5 Secure in Tennessee

Not listed as nonindigenous in Tennessee by USGS NAS; native to its Tennessee range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

Eastern Red Bat in Tennessee, by the numbers

Common in Tennessee 27th most recorded of 86 mammals logged in Tennessee

392 occurrence records
169 with iNaturalist photos
Jun 30, 2026 Last seen in Tennessee

Records from 2000–2026.

392 total records count every Tennessee occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 300; the monthly chart covers the 390 records with a full observation date.

When to look for the Eastern Red Bat in Tennessee

Most sightings fall in June to August.

390 Tennessee occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Tennessee records (table)
MonthRecords
January2
February9
March19
April35
May25
June56
July82
August78
September37
October25
November15
December7

Monthly eastern red bat occurrence records (iNaturalist and GBIF) in Tennessee, 2000–2026.

Seasonality

Year-round in Tennessee, with recorded sightings peaking in June–August.

Occurrence map

Where Eastern Red Bat has been recorded in Tennessee

300 records mapped · zoom and drag to explore

300 Tennessee records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Shiloh National Military Park 30
Reelfoot Lake 5
North Cherokee National Forest & Wildlife Management Area 4
Cherokee National Forest 4
Great Smoky Mountains National Park 4
Oak Ridge Wildlife Management Area 3
Cheatham Wildlife Management Area 2
Norris Dam 1

Protected places with the most eastern red bat sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in Tennessee

CountyRecords
Gibson County 45
Hardin County 31
Shelby County 29
Davidson County 20
Hamilton County 19
Knox County 18
Decatur County 16
Blount County 14
Fayette County 10
Sevier County 9
Roane County 8
Dyer County 8
57 other counties 165

The complete county distribution, spread across 69 Tennessee counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Eastern red bat records in Tennessee stretch from Cherokee National Forest in the east to Land Between the Lakes near the Kentucky border, with Middle Tennessee’s Cedars of Lebanon filling the gap between them. This bat roosts alone in tree foliage instead of forming cave colonies, so Cherokee National Forest’s larger count likely reflects more survey visits there, not a real concentration of bats. GBIF supplies roughly twice as many Tennessee records as iNaturalist, suggesting mist-net surveys add to what casual observers report.

July produces far more reports than any other month, with June a distant second and winter months nearly silent. That summer surge lines up with peak insect activity and young bats becoming independent fliers, both of which put more red bats in the air to notice. That doesn’t mean red bats vanish in winter; it likely just reflects how rarely anyone goes looking for a foliage-roosting bat in the cold.

Occurrence data from iNaturalist and GBIF.

More mammals in Tennessee in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"